Detailed 1. 24" Roof Ventilators Which are used for Industry Ventilation 2.Anti-corrosion and Rust-weather and storm Resistance 3.ECO Product Name: 24" Roof Ventilators Which are used for Industry VentilationHS Code84145930Thickness of inner Supports1.4MMThickness of Outer parts0.4-0.

Detailed Wind RoofVentilation/Ventilator 1.no energy cost 2.earth-friendly 3.good exhaust capacity 4.continue working even in breez The Characters and the Advantages of TG Wind Roof Ventilation/Ventilator1. The Theory of Its Running .

Detailed Wind RoofVentilation/Ventilator 1.no energy cost 2.earth-friendly 3.good exhaust capacity 4.continue working even in breez The Characters and the Advantages of TG Wind Roof Ventilation/Ventilator1. The Theory of Its Running .

Detailed Turbine RoofVentilation Fan 1.well and high quality control 2.large air output 3.environment protection 4.energy save The Characters and the Advantages of TG No power Ventilators1. The Theory of Its Running Our&nbs.